a16z: 'Wallet wars' loom as AI agents seek the power to pay
An a16z newsletter argues that agents such as Instinct, OpenAI's Dots and Meta's Muse are pushing personal assistants into messaging and everyday apps, and that completing tasks — booking a hotel, ordering cleats — requires something intelligence alone cannot supply: permission to pay. It frames a "wallet war" among wallets that already hold consumer credentials, citing Stripe's Link (300M users), Shopify's Shop Pay (250M) and PayPal (400M+), and distinguishes helping an agent pay from letting it transact as the user. The piece walks through payment tokenization, warns that Stripe's own virtual-card route can split a purchase into two transactions that break merchant relationships and card benefits, and points to card-network standards — Visa Intelligent Commerce, Mastercard AgentPay and AMEX ACE — plus scoped agentic tokens as the likely path. It also announces a new nonprofit, Securing America's Infrastructure Foundation (SAIF).
For agents to move from giving advice to spending money, payment authorization, routing and liability rules are the missing infrastructure; whoever sets those standards — wallets or card networks — may own the next commerce entry point.